I stick to 33 1/3 LPs mostly. I have a fair amount of singles (both 7" and 12", varying sizes of EPs too) but I've always been an album kind of person because I like the hidden gems that sometimes never got radio play or much recognition, so even if I only know a band for one song, I still like to listen to the whole album. I also like covers, find LPs easier to store (despite the difference in size), and on average, they are simply in better condition (most people just kept their singles in a big, friction-happy stack.